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kaitlynk0
02.09.2020 •
Mathematics
ITunes is running a sale where songs are $1.19 If you purchase one to ten songs. If you purchase 11 songs or more, they cost $0.99 each. Write an equation to model this situation.
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Ответ:
Ответ:
d
step-by-step explanation:
the two points from this line are (0,4) & (2,-2)
we can call
now, lets find the slope (m):
now finding b (the y intercept). this is the point at the y-axis where the line cuts the axis. looking at the graph, it is y = 4. so the point is 4. hence b = 4
the slope-intercept form is given by![y=mx+b](/tex.php?f=y=mx+b)
putting the points, we have:
d is the correct answer.